/* Global Settings & Reset */
:root {
    --primary: #f59e0b; /* Handwerker-Orange/Amber */
    --primary-hover: #d97706;
    --primary-light: #fef3c7;
    
    --bg-app: #f1f5f9;
    --bg-sidebar: #0f172a; /* Dunkles Schieferblau */
    --bg-sidebar-active: #1e293b;
    --bg-card: #ffffff;
    
    --text-light: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --success: #10b981;
    --error: #ef4444;
    --font-main: 'Outfit', sans-serif;
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-app);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    padding: 24px;
    flex-shrink: 0;
    border-right: 1px solid rgba(255,255,255,0.05);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 24px;
}

.brand-icon {
    font-size: 24px;
}

.brand-name {
    font-size: 20px;
    letter-spacing: -0.5px;
}

.brand-name strong {
    color: var(--primary);
    font-weight: 700;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #94a3b8;
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover:not(.disabled) {
    background-color: var(--bg-sidebar-active);
    color: var(--text-light);
}

.nav-item.active {
    background-color: var(--primary);
    color: var(--bg-sidebar);
    font-weight: 600;
}

.nav-item.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.nav-icon {
    flex-shrink: 0;
}

.sidebar-footer {
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #94a3b8;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #64748b;
}

.dot.active {
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.header-title h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 15px;
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 8px;
}

.btn-xs {
    padding: 4px 8px;
    font-size: 12px;
    border-radius: 6px;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--bg-sidebar);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-success {
    background-color: var(--success);
    color: white;
}

.btn-success:hover {
    background-color: #0d9488;
}

/* KPI Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stats-card {
    background-color: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
}

.stats-info {
    display: flex;
    flex-direction: column;
}

.stats-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.stats-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    margin-top: 4px;
}

.stats-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bg-blue {
    background-color: #eff6ff;
    color: #3b82f6;
}

.bg-orange {
    background-color: #fff7ed;
    color: #f97316;
}

/* Content Cards & Tables */
.content-card {
    background-color: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

.table-actions {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.search-box {
    display: flex;
    align-items: center;
    background-color: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 16px;
    max-width: 400px;
    transition: border-color 0.2s ease;
}

.search-box:focus-within {
    border-color: var(--primary);
    background-color: #ffffff;
}

.search-icon {
    color: var(--text-muted);
    margin-right: 10px;
}

.search-box input {
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    width: 100%;
}

.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background-color: #f8fafc;
    padding: 16px 24px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}

.data-table tbody tr {
    transition: background-color 0.2s ease;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

.table-loading {
    text-align: center;
    color: var(--text-muted);
    padding: 40px !important;
}

.table-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 60px !important;
    font-style: italic;
}

/* Modal dialog */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    overflow-y: auto;
    padding: 20px;
}

.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-card);
    width: 100%;
    max-width: 600px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    margin: auto;
}

.modal-card.modal-lg {
    max-width: 900px;
}

.modal-backdrop.show .modal-card {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.btn-close {
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    border-radius: 50%;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-close:hover {
    background-color: #f1f5f9;
    color: var(--text-main);
}

.modal-body {
    padding: 28px;
    max-height: 70vh;
    overflow-y: auto;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.col-12 {
    grid-column: span 2;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

.required {
    color: var(--error);
}

.form-group input, 
.form-group select {
    font-family: inherit;
    font-size: 15px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    background-color: #f8fafc;
    transition: all 0.2s ease;
    width: 100%;
}

.form-group input:focus, 
.form-group select:focus {
    border-color: var(--primary);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.modal-footer {
    padding: 20px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Badges & Labels */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-offer {
    background-color: #eff6ff;
    color: #2563eb;
    border: 1px solid #bfdbfe;
}

.badge-order {
    background-color: #fff7ed;
    color: #ea580c;
    border: 1px solid #fed7aa;
}

.badge-status-draft {
    background-color: #f1f5f9;
    color: #475569;
}

.badge-status-sent {
    background-color: #e0f2fe;
    color: #0369a1;
}

.badge-status-confirmed {
    background-color: #e0e7ff;
    color: #4338ca;
}

.badge-status-completed {
    background-color: #d1fae5;
    color: #065f46;
}

.company-badge {
    background-color: #f1f5f9;
    color: #475569;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid var(--border);
}

/* Dynamic Line Items Section */
.order-items-section {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    margin-top: 10px;
}

.order-items-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.items-form-table {
    width: 100%;
    border-collapse: collapse;
}

.items-form-table th {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    text-align: left;
    padding: 8px 12px;
    border-bottom: 2px solid var(--border);
}

.items-form-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.items-form-table input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    background-color: #f8fafc;
    outline: none;
}

.items-form-table input:focus {
    border-color: var(--primary);
    background-color: #ffffff;
}

.row-total-val {
    font-weight: 600;
    font-size: 14px;
    display: inline-block;
    padding: 8px 0;
}

.btn-remove-row {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--error);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 6px;
}

.btn-remove-row:hover {
    background-color: #fef2f2;
}

.total-summary-row {
    display: flex;
    justify-content: flex-end;
    padding-top: 16px;
    border-top: 2px double var(--border);
}

.total-box {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: #f8fafc;
    padding: 12px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.total-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 15px;
}

.total-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
}

/* Feedback Toast System */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: var(--bg-sidebar);
    color: var(--text-light);
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1010;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background-color: var(--success);
}

.toast.error {
    background-color: var(--error);
}

/* Responsive Design */
@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.05);
        padding: 16px;
    }
    
    .sidebar-brand {
        padding-bottom: 16px;
        margin-bottom: 16px;
    }
    
    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
    }
    
    .sidebar-footer {
        display: none;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .col-12 {
        grid-column: span 1;
    }
}